63229404921 has 16 divisors (see below), whose sum is σ = 85216253760. Its totient is φ = 41700188160.

The previous prime is 63229404899. The next prime is 63229404967. The reversal of 63229404921 is 12940492236.

It is not a de Polignac number, because 63229404921 - 2¹⁹ = 63228880633 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (63229404221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201400 + ... + 408681.

It is an arithmetic number, because the mean of its divisors is an integer number (5326015860).

Almost surely, 2^63229404921 is an apocalyptic number.

It is an amenable number.

63229404921 is a deficient number, since it is larger than the sum of its proper divisors (21986848839).

63229404921 is a wasteful number, since it uses less digits than its factorization.

63229404921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610456.

The product of its (nonzero) digits is 186624, while the sum is 42.

The spelling of 63229404921 in words is "sixty-three billion, two hundred twenty-nine million, four hundred four thousand, nine hundred twenty-one".